Exclusive electroproduction of [Formula Presented] mesons at 4.2 GeV


Journal Article

We studied the exclusive reaction [Formula Presented] using the [Formula Presented] decay mode. The data were collected using a 4.2 GeV incident electron beam and the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Our experiment covers the range in [Formula Presented] from 0.7 to 2.2 [Formula Presented] and W from 2.0 to 2.6 GeV. Taken together with all previous data, we find a consistent picture of [Formula Presented] production on the proton. Our measurement shows the expected decrease of the t slope with the vector-meson formation time [Formula Presented] below 2 fm. At [Formula Presented] fm, we measure [Formula Presented] The cross section dependence on W as [Formula Presented] at [Formula Presented] was determined by comparison with [Formula Presented] production at HERA after correcting for threshold effects. This is the same dependence as observed in photoproduction. © 2001 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Lukashin, K; Smith, ES; Adams, GS; Anciant, E; Anghinolfi, M; Asavapibhop, B; Audit, G; Auger, T; Avakian, H; Ball, J; Barrow, S; Battaglieri, M; Beard, K; Bektasoglu, M; Bertozzi, W; Bianchi, N; Biselli, A; Boiarinov, S; Bonner, BE; Bouchigny, S; Branford, D; Briscoe, WJ; Brooks, WK; Burkert, VD; Calarco, JR; Carman, DS; Carnahan, B; Ciciani, L; Clark, R; Cole, PL; Coleman, A; Cords, D; Corvisiero, P; Crabb, D; Crannell, H; Cummings, J; Degtiarenko, PV; Dennis, LC; De Sanctis, E; DeVita, R; Dhuga, KS; Djalali, C; Dodge, GE; Domingo, J; Doughty, D; Dragovitsch, P; Dytman, S; Eckhause, M; Egiyan, H; Egiyan, KS; Elouadrhiri, L; Empl, A; Fatemi, R; Feuerbach, RJ; Ficenec, J; Fissum, K; Forest, TA; Freyberger, A; Funsten, H; Gaff, S; Gai, M; Gavalian, G; Gilad, S; Gilfoyle, G; Giovanetti, K; Girard, P; Griffioen, KA; Guidal, M; Guillo, M; Gyurjyan, V; Hardie, J; Heddle, D; Hersman, FW; Hicks, K; Hicks, RS; Holtrop, M; Hu, J; Hyde-Wright, CE; Ito, MM; Jenkins, D; Joo, K; Kelley, J; Khandaker, M; Kim, K; Kim, KY; Kim, W; Klein, A; Klein, FJ; Klusman, M; Kossov, M; Kramer, LH; Kuhn, SE; Laget, JM; Lawrence, D; Longhi, A; Manak, JJ; Marchand, C; McAleer, S; McCarthy, J; McNabb, JWC

Published Date

  • January 1, 2001

Published In

Volume / Issue

  • 63 / 6

Start / End Page

  • 11 -

Electronic International Standard Serial Number (EISSN)

  • 1089-490X

International Standard Serial Number (ISSN)

  • 0556-2813

Digital Object Identifier (DOI)

  • 10.1103/PhysRevC.63.065205

Citation Source

  • Scopus